programs: add qalculate

Signed-off-by: Myned <dev@bjork.tech>

options/custom/menus/rofi/default.nix

@@ -9,12 +9,14 @@ with lib; let
   hm = config.home-manager.users.${config.custom.username};
 
   cliphist = getExe hm.services.cliphist.package;
+  echo = getExe' pkgs.coreutils "echo";
   networkmanager_dmenu = getExe pkgs.networkmanager_dmenu;
   notify-send = getExe pkgs.libnotify;
   pkill = getExe' pkgs.procps "pkill";
   rofi = getExe hm.programs.rofi.finalPackage;
   rofi-rbw = getExe pkgs.rofi-rbw;
   rofimoji = getExe pkgs.rofimoji;
+  wl-copy = getExe' pkgs.wl-clipboard "wl-copy";
 in {
   options.custom.menus.rofi = {
     enable = mkOption {default = false;};
@@ -26,7 +28,14 @@ in {
         quit = "${pkill} --exact rofi";
       in {
         show = "${quit} || ${rofi} -show drun -show-icons";
-        calculator.show = "${quit} || ${rofi} -show calc";
+
+        calculator.show = concatStringsSep " " [
+          "${quit} || ${rofi}"
+          "-show calc"
+          "-no-history"
+          "-calc-error-color '#dc322f'"
+          ''-calc-command "${echo} -n '{result}' | ${wl-copy}"''
+        ];
 
         clipboard = {
           show = "${quit} || ${rofi} -show clipboard -show-icons";

options/custom/programs/default.nix

@@ -21,6 +21,7 @@ with lib; {
       nixgl.enable = true;
       nushell.enable = true;
       polkit.enable = true;
+      qalculate.enable = true;
       ssh.enable = true;
       starship.enable = true;
       sudo.enable = true;

options/custom/programs/qalculate.nix

@@ -0,0 +1,30 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.custom.programs.qalculate;
+in {
+  options.custom.programs.qalculate = {
+    enable = mkOption {default = false;};
+  };
+
+  config = mkIf cfg.enable {
+    # https://github.com/Qalculate/libqalculate
+    # https://qalculate.github.io/manual/qalc.html
+    environment.systemPackages = [pkgs.libqalculate];
+
+    home-manager.sharedModules = [
+      {
+        xdg.configFile = {
+          # https://github.com/svenstaro/rofi-calc?tab=readme-ov-file#advanced-usage
+          "qalculate/qalc.cfg".text = ''
+            digit_grouping=2
+          '';
+        };
+      }
+    ];
+  };
+}

options/custom/settings/packages.nix

@@ -28,7 +28,6 @@ in {
           fzf # Fuzzy search
           jq # JSON parser
           killport # Kill processes on port
-          libqalculate # Calculator
           lf # Terminal file manager
           lm_sensors # System sensors
           nix-output-monitor # Nix build parser